Global Patent Index - EP 1929503 B1

EP 1929503 B1 20101110 - UV-EMITTING PHOSPHORS, PHOSPHOR BLEND AND LAMP CONTAINING SAME

Title (en)

UV-EMITTING PHOSPHORS, PHOSPHOR BLEND AND LAMP CONTAINING SAME

Title (de)

UV-EMITTIERENDE LEUCHTSTOFFE, LEUCHTSTOFFMISCHUNG UND LAMPE DAMIT

Title (fr)

PHOSPHORES EMETTEURS D'UV, MELANGE DE PHOSPHORES ET LAMPE RENFERMANT CEUX-CI

Publication

EP 1929503 B1 20101110 (EN)

Application

EP 06836140 A 20060925

Priority

  • US 2006037379 W 20060925
  • US 59651305 P 20050929

Abstract (en)

[origin: US2007069624A1] There are provided UV-emitting phosphors, a phosphor blend and a lamp containing same. The blend is comprised of a mixture of a YPO<SUB>4</SUB>:Ce phosphor and a LaPO<SUB>4</SUB>:Ce phosphor. The YPO<SUB>4</SUB>:Ce and LaPO<SUB>4</SUB>:Ce phosphors may be surface treated to increase their isoelectric point to enhance lamp stabilization. A third phosphor having an isoelectric point that is at least 3 pH units higher than either of the YPO<SUB>4</SUB>:Ce and LaPO<SUB>4</SUB>:Ce phosphors also may be added to improve lamp stabilization time. The phosphor blend is lead-free and lamps containing the blend provide equivalent performance to state-of-the-art tanning lamps.

IPC 8 full level

C09K 11/70 (2006.01); H01J 1/62 (2006.01); H01J 63/04 (2006.01); H05B 33/20 (2006.01)

CPC (source: EP KR US)

C09K 11/70 (2013.01 - KR); C09K 11/774 (2013.01 - EP US); C09K 11/7777 (2013.01 - EP US); H01J 61/44 (2013.01 - EP US); H01J 61/35 (2013.01 - EP US); H01J 61/70 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB HU IT

DOCDB simple family (publication)

US 2007069624 A1 20070329; CA 2623695 A1 20070405; CN 101288144 A 20081015; DE 602006018162 D1 20101223; EP 1929503 A2 20080611; EP 1929503 A4 20090114; EP 1929503 B1 20101110; KR 20080056260 A 20080620; RU 2008116815 A 20091110; WO 2007038467 A2 20070405; WO 2007038467 A3 20080703; WO 2007038467 A9 20070531

DOCDB simple family (application)

US 52594206 A 20060925; CA 2623695 A 20060925; CN 200680036305 A 20060925; DE 602006018162 T 20060925; EP 06836140 A 20060925; KR 20087010303 A 20080429; RU 2008116815 A 20060925; US 2006037379 W 20060925